1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 1991, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * Margo Seltzer. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. Neither the name of the University nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 */ 34 35 #include <sys/types.h> 36 #include <sys/file.h> 37 #include <db.h> 38 #include <stdio.h> 39 40 #define INITIAL 25000 41 #define MAXWORDS 25000 /* # of elements in search table */ 42 43 /* Usage: thash pagesize fillfactor file */ 44 char wp1[8192]; 45 char wp2[8192]; 46 main(argc, argv) 47 char **argv; 48 { 49 DBT item, key; 50 DB *dbp; 51 HASHINFO ctl; 52 FILE *fp; 53 int stat; 54 55 int i = 0; 56 57 argv++; 58 ctl.nelem = INITIAL; 59 ctl.hash = NULL; 60 ctl.bsize = atoi(*argv++); 61 ctl.ffactor = atoi(*argv++); 62 ctl.cachesize = 1024 * 1024; /* 1 MEG */ 63 ctl.lorder = 0; 64 argc -= 2; 65 if (!(dbp = dbopen( NULL, O_CREAT|O_RDWR, 0400, DB_HASH, &ctl))) { 66 /* create table */ 67 fprintf(stderr, "cannot create: hash table size %d)\n", 68 INITIAL); 69 exit(1); 70 } 71 72 key.data = wp1; 73 item.data = wp2; 74 while ( fgets(wp1, 8192, stdin) && 75 fgets(wp2, 8192, stdin) && 76 i++ < MAXWORDS) { 77 /* 78 * put info in structure, and structure in the item 79 */ 80 key.size = strlen(wp1); 81 item.size = strlen(wp2); 82 83 /* 84 * enter key/data pair into the table 85 */ 86 if ((dbp->put)(dbp, &key, &item, R_NOOVERWRITE) != NULL) { 87 fprintf(stderr, "cannot enter: key %s\n", 88 item.data); 89 exit(1); 90 } 91 } 92 93 if ( --argc ) { 94 fp = fopen ( argv[0], "r"); 95 i = 0; 96 while ( fgets(wp1, 8192, fp) && 97 fgets(wp2, 8192, fp) && 98 i++ < MAXWORDS) { 99 key.size = strlen(wp1); 100 stat = (dbp->del)(dbp, &key, 0); 101 if (stat) { 102 fprintf ( stderr, "Error retrieving %s\n", key.data ); 103 exit(1); 104 } 105 } 106 fclose(fp); 107 } 108 (dbp->close)(dbp); 109 exit(0); 110 } 111